Description

The LX5240CPW is a multimode SCSI terminator with plug-and-play capability that conforms to the SCSI Parallel Interconnect-2 (SPI-2) specification. It is developed by the T10 standards committee for low voltage differential (LVD) termination. The LX5240CPW provides backwards compatibility to the SCSI, SCSI-2, and SPI single-ended specifications. It allows the use of legacy devices on the bus without hardware alterations. Automatic mode selection is achieved through voltage detection on the diffsense line.

Specifications and features

• Auto-Selectable LVD Or Single-Ended Termination
• 3.0pF Maximum Disabled Output Capacitance
• Fast Response, No External Capacitors Required
• Compatible With Active Negation Drivers
• 15µA Supply Current In Disconnect Mode
• Logic Command Disconnects All Termination Lines
• Diffsense Line Driver
• Ground Driver Integrated For Single-Ended Operation
• Current Limit And Thermal Protection
• Hot-Swap Compatible (Single-Ended)
• Compatible With SCSI 1, 2, 3, Fast-20, And The Pending SPI-2 LVD
• Plug And Play Compatible
• See LX5245/5246, LVD Termination Only

Application Scenarios

The LX5240CPW is suitable for use in SCSI systems where termination is required. It is used to terminate the SCSI bus and ensure signal integrity. The plug-and-play capability makes it easy to install and use with legacy devices without the need for hardware alterations. It is compatible with various SCSI specifications and is ideal for both single-ended and LVD termination.

Comparison

• Backwards compatibility with SCSI, SCSI-2, and SPI single-ended specifications
• Plug-and-play capability for easy installation
• Automatic mode selection through voltage detection
• Compatible with various SCSI specifications, including SCSI 1, 2, 3, Fast-20, and SPI-2 LVD
• Hot-swap compatible for single-ended termination

• Not suitable for LVD termination only (see LX5245/5246 for LVD termination only)
• Does not support active negation drivers
• Limited to maximum disabled output capacitance of 3.0pF